package com.heima.admin.service.impl;

import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.baomidou.mybatisplus.extension.api.R;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.heima.admin.mapper.AdminMapper;
import com.heima.admin.service.AdminService;
import com.heima.model.admin.dtos.AdUserDto;
import com.heima.model.admin.pojos.AdUser;
import com.heima.model.common.dtos.ResponseResult;
import com.heima.model.common.enums.AppHttpCodeEnum;
import com.heima.utils.common.AppJwtUtil;
import org.apache.commons.lang3.StringUtils;
import org.checkerframework.checker.units.qual.A;
import org.springframework.stereotype.Service;
import org.springframework.util.DigestUtils;

import java.util.HashMap;
import java.util.Map;

@Service
public class AdminServiceImpl extends ServiceImpl<AdminMapper, AdUser> implements AdminService {


    /**
     * 登录
     * @param dto
     * @return
     */
    @Override
    public ResponseResult login(AdUserDto dto) {
        //1.参数校验
        if(StringUtils.isBlank(dto.getName())||StringUtils.isBlank(dto.getPassword())){
            return ResponseResult.errorResult(AppHttpCodeEnum.PARAM_INVALID,"用户名或密码错误");
        }
        //2.查询用户
        AdUser adUser=getOne(Wrappers.<AdUser>lambdaQuery().eq(AdUser::getName,dto.getName()));
        if(adUser==null){
            return ResponseResult.errorResult(AppHttpCodeEnum.DATA_NOT_EXIST);
        }
        //3.对比密码

        //得到盐和密码
        String salt = adUser.getSalt();
        String password = dto.getPassword();

        //密码+盐装换位md5格式密码再和数据库比对
        String s = DigestUtils.md5DigestAsHex((password + salt).getBytes());
        if(s.equals(adUser.getPassword())){
            //4.返回数据
            Map<String, Object> map = new HashMap<>();
            map.put("token", AppJwtUtil.getToken(adUser.getId().longValue()));
            adUser.setSalt("");
            adUser.setPassword("");
            map.put("user",adUser);
            return ResponseResult.okResult(map);
        }else
        return ResponseResult.errorResult(AppHttpCodeEnum.LOGIN_PASSWORD_ERROR);
    }
}
